@techreport{oai:repository.dl.itc.u-tokyo.ac.jp:00042254,
 author = {Sawada, Yasuyuki and Michael, Lokshin},
 month = {Mar},
 note = {application/pdf, 本文フィルはリンク先を参照のこと},
 title = {Obstacles to School Progression in Rural Pakistan : An Analysis of Gender and Sibling Rivalry Using Field Survey Data},
 year = {2007}
}